Port work and over sized valves?
Having trouble on deciding if I should stick with "stock sized valves" or pay my machine shop $400 to port my head+ $200 to install the valves and valve springs. I'm trying to get more power out of my 22re and am thinking about 3mm valves with an aggressive cam but not sure if it's worth $600 for the amount of power I would gain. Any input?
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Not going to tell you whether it's worth it, because I'm still waiting for my Stage 2 engine from 22RE Performance to be built and delivered. But I can say that they sell complete new heads for $800 or something like that with oversize valves, port work, and a cam.
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I would keep it stock. Unless you go the turbo route I don't see the point. Very little gains for $$$. At that point you should have gone 3RZ or 5VZFE.
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Originally Posted by se7enine
(Post 52415203)
I would keep it stock. Unless you go the turbo route I don't see the point. Very little gains for $$$. At that point you should have gone 3RZ or 5VZFE.
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:coffee:
Originally Posted by Cumminsguy1
(Post 52415204)
my thoughts exactly, a lot of money for what an extra 7hp?
Another thing that needs to be considered is how the stock fuel management system (the EFI system) will react to these valve / head modifications. I have no direct experience with oversize valves so I don't know if that would be an issue. You can contact https://22reperformance.com/ and see what they say would be best for what you want to do with your truck. They work with stock valves, 1 mm oversize valves, and 3 mm oversize valves all the time and could give you realistic expectations on a 3 mm oversize valve, aggressive cam setup. :safari: |
Originally Posted by Cumminsguy1
Having trouble on deciding if I should stick with "stock sized valves" or pay my machine shop $400 to port my head+ $200 to install the valves and valve springs. I'm trying to get more power out of my 22re and am thinking about 3mm valves with an aggressive cam but not sure if it's worth $600 for the amount of power I would gain. Any input?
Motors can be cleaned up, super mild porting mainly just removing pieces left over from the casting. Probably the best Motors can be ported for bottom end, midrange, top end etc. When I was building 2 stroke motors I found it was best to ask the potential porter what their driving/riding style was. Most people do what I call hog porting, or taking as much material out as possible. This weakens the motor significantly. Some race port usually top end and some say they know what they are doing even though they have had to redo their personal motor every 6 months because it blows up. Do your research and make you decision. But remember this. Porting allows more fuel and air to flow through the motor. So it only works if the complete intake and exhaust are balanced. |
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